20056144 has 20 divisors (see below), whose sum is σ = 39206196. Its totient is φ = 9938432.

The previous prime is 20056123. The next prime is 20056147. The reversal of 20056144 is 44165002.

It can be written as a sum of positive squares in 2 ways, for example, as 7182400 + 12873744 = 2680^2 + 3588^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20056147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3739 + ... + 7354.

Almost surely, 2^20056144 is an apocalyptic number.

It is an amenable number.

20056144 is a deficient number, since it is larger than the sum of its proper divisors (19150052).

20056144 is a wasteful number, since it uses less digits than its factorization.

20056144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11214 (or 11208 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 20056144 is about 4478.4086459366. The cubic root of 20056144 is about 271.6955214603.

The spelling of 20056144 in words is "twenty million, fifty-six thousand, one hundred forty-four".